X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fvideo_examiner.h;h=55b27ac94832f42397b7a96425ee9dd22ba65d94;hb=c008066160d85b9ec9e5485375d7baaa5d27bda2;hp=d4897213beb69634d1b777b955e4d0b9efa9a44b;hpb=2e504b33eb9f38cac629ad31b7c107fb0cf5efda;p=dcpomatic.git

diff --git a/src/lib/video_examiner.h b/src/lib/video_examiner.h
index d4897213b..55b27ac94 100644
--- a/src/lib/video_examiner.h
+++ b/src/lib/video_examiner.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,15 +17,25 @@
 
 */
 
+/** @file  src/lib/video_examiner.h
+ *  @brief VideoExaminer class.
+ */
+
 #include <dcp/types.h>
 #include "types.h"
 #include "video_content.h"
 
+/** @class VideoExaminer
+ *  @brief Parent for classes which examine video sources and obtain information about them.
+ */
 class VideoExaminer
 {
 public:
 	virtual ~VideoExaminer () {}
-	virtual float video_frame_rate () const = 0;
+	virtual boost::optional<float> video_frame_rate () const = 0;
 	virtual dcp::Size video_size () const = 0;
 	virtual ContentTime video_length () const = 0;
+	virtual boost::optional<float> sample_aspect_ratio () const {
+		return boost::optional<float> ();
+	}
 };